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搜索结果: 1-15 共查到医学 Expiratory相关记录19条 . 查询时间(0.046 秒)
Purpose: We recently reported a high prevalence of expiratory flow limitation (EFL) independent of sex in prepubescent children that exceeds the prevalence reported in adults. It is unknown how transp...
Our objective was to determine if the menstrual cycle affected expiratory resistance developed during progressive incremental exercise in females. Eleven females (age = 19.7 ± 1.1 yr., body mass = 58....
Background A non-invasive surrogate measurement for central venous oxygen saturation (ScVO2) would be useful in the ED for assessing therapeutic interventions in critically ill patients. We hypothesiz...
Estimate of maximum expiratory flow based on the equal pressure point concept and Weibel's lung model.
The effect of external resistance on the relationship of expiratory air flow and intrathoracic and mouth pressure on subjects breathing gas of increased density was investigated. Five subjects breathi...
Four to six subjects performed maximal voluntary ventilation (MVV) and forced expirations during rest, exercise (50, 125, and 200 W), and inhalation of air and CO2 and air at rest while submerged at p...
This study was performed to determine if inspiratory breathing resistance causes greater or smaller changes than expiratory resistance. Unacceptable inspiratory resistances were also determined. Five ...
It has been estimated that asthma is as common amongst divers as in the general population. Thus, asthmatic individuals may require hyperbaric therapy and monitoring in this treatment. Asthma is us...
Youn BA, Houseknecht R, DeAntonio A. Review of Positive End - Expiratory Pressure and Its Application in the Hyperbaric Environment. J. Hyperbaric Med 1991; 6(2):87-99.
In the management and evaluation of asthma, simple instruments for measurements of peak expiratory flow rate (PEFR) are necessary. The aim of this study was to determine normal PEFR of the healthy chi...
In women, maximum expiratory pressure increased with volume from 39 to 61 cmH2O and maximum inspiratory pressure decreased with volume from 66 to 28 cmH2O. In men, maximum expiratory pressure increase...
Recent guidelines for the management of asthma recommend that peak expiratory flow (PEF) should be measured to monitor the level of airflow limitation and to maintain PEF values within the green zone ...
From the regression equations, predicted values of PEF can be derived for any Japanese adult aged 15-74 years. We were able to obtain predicted equations for PEF in normal Japanese adults using both ...
From 14.2 mL (47%) to 27.3 mL (91%) of the infused 30 mL of FC-77 was recovered at the flow rates studied. Significantly higher FC-77 recovery was obtained at lower flow rates (ANOVA with Bonferroni's...
Background: Circadian rhythm is a well recognized feature of patients with asthma characterized by a morning dip of the peak flow rate. However, evening dips of asthmatic patients have never been syst...

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